Google’s annual I/O developer conference takes place in the Moscone Centre in San Francisco this June and, to promote the event before registrations open in two weeks, they have released an HTML5-based game – another addition to the fantastic list of Chrome Experiments. The input/output game involves designing contraptions to get a ball from one side of the screen to the other in true Rube Goldberg style. Google will also feature some of the best creations at the conference from June 27-29, so grab it from the Chrome Web Store and get building!

First off, Spool, an innovative new add-on available on Firefox and Chrome, as well as being an app on iOS and Android. Think Instapaper but for EVERYTHING. Any media: video, text, pictures, all collected at the touch of a button and uploaded to the Spool servers, where you can enjoy them offline, on any supported device ‘in a clear format’. Using an innovative new ‘spoolbot’, all data is captured without the ads. Although the bot sadly has to watch all video before it can be uploaded, it’s still very impressive.

Even better; fretting about whether that video you just spooled was in Flash and so can’t be watched on your iPhone? Don’t! Spool automatically converts everything to HTML5 and so can be enjoyed on any device supported. We hope for a Windows Phone version as well as quicker upload times in the future. Best of all, right now it is in free, private beta. Don’t hesitate, join up now. If your interested, that link will give both you and me a shorter time of being accepted as the more people invited, the quicker the invite.